Connected: An Internet Encyclopedia
RFC 1880 - 6.6. Telnet Options

Top: Connected: An Internet Encyclopedia
Up: Requests For Comments
Up: RFC 1880
Up: 6. The Protocols
Prev: 6.5. Proposed Standard Protocols
Next: 6.7. Experimental Protocols

### 6.6. Telnet Options

For convenience, all the Telnet Options are collected here with both their state and status.

    Protocol   Name                           Number  State Status  RFC STD
    ========   =====================================  ===== ====== ==== ===
    TOPT-BIN   Binary Transmission                 0  Std   Rec     856  27
    TOPT-ECHO  Echo                                1  Std   Rec     857  28
    TOPT-RECN  Reconnection                        2  Prop  Ele     ...
    TOPT-SUPP  Suppress Go Ahead                   3  Std   Rec     858  29
    TOPT-APRX  Approx Message Size Negotiation     4  Prop  Ele     ...
    TOPT-STAT  Status                              5  Std   Rec     859  30
    TOPT-TIM   Timing Mark                         6  Std   Rec     860  31
    TOPT-REM   Remote Controlled Trans and Echo    7  Prop  Ele     726
    TOPT-OLW   Output Line Width                   8  Prop  Ele     ...
    TOPT-OPS   Output Page Size                    9  Prop  Ele     ...
    TOPT-OCRD  Output Carriage-Return Disposition 10  Prop  Ele     652
    TOPT-OHT   Output Horizontal Tabstops         11  Prop  Ele     653
    TOPT-OHTD  Output Horizontal Tab Disposition  12  Prop  Ele     654
    TOPT-OFD   Output Formfeed Disposition        13  Prop  Ele     655
    TOPT-OVT   Output Vertical Tabstops           14  Prop  Ele     656
    TOPT-OVTD  Output Vertical Tab Disposition    15  Prop  Ele     657
    TOPT-OLD   Output Linefeed Disposition        16  Prop  Ele     658
    TOPT-EXT   Extended ASCII                     17  Prop  Ele     698
    TOPT-LOGO  Logout                             18  Prop  Ele     727
    TOPT-BYTE  Byte Macro                         19  Prop  Ele     735
    TOPT-DATA  Data Entry Terminal                20  Prop  Ele    1043
    TOPT-SUP   SUPDUP                             21  Prop  Ele     736
    TOPT-SUPO  SUPDUP Output                      22  Prop  Ele     749
    TOPT-SNDL  Send Location                      23  Prop  Ele     779
    TOPT-TERM  Terminal Type                      24  Prop  Ele    1091
    TOPT-EOR   End of Record                      25  Prop  Ele     885
    TOPT-TACACS  TACACS User Identification       26  Prop  Ele     927
    TOPT-OM    Output Marking                     27  Prop  Ele     933
    TOPT-TLN   Terminal Location Number           28  Prop  Ele     946
    TOPT-3270  Telnet 3270 Regime                 29  Prop  Ele    1041
    TOPT-X.3   X.3 PAD                            30  Prop  Ele    1053
    TOPT-NAWS  Negotiate About Window Size        31  Prop  Ele    1073
    TOPT-TS    Terminal Speed                     32  Prop  Ele    1079
    TOPT-RFC   Remote Flow Control                33  Prop  Ele    1372
    TOPT-LINE  Linemode                           34  Draft Ele    1184
    TOPT-XDL   X Display Location                 35  Prop  Ele    1096
    TOPT-ENVIR Telnet Environment Option          36  Hist  Not    1408
    TOPT-AUTH  Telnet Authentication Option       37  Exp   Ele    1416
    TOPT-ENVIR Telnet Environment Option          39  Prop  Ele    1572
    TOPT-EXTOP Extended-Options-List             255  Std   Rec     861  32

[Note: an asterisk at the end of a line indicates a change from the previous edition of this document.]

Next: 6.7. Experimental Protocols

Connected: An Internet Encyclopedia
RFC 1880 - 6.6. Telnet Options